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Texas Instruments 5962-8686901EA
- Part No.:
- 5962-8686901EA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-8686901EA.pdf
- Description:
- SN54ALS157A QUADRUPLE 1-OF-2 DAT
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Product details
Overview
5962-8686901EA from Texas Instruments is a military-grade quad 2-line-to-1-line data selector/multiplexer with true-output logic, operating across −55°C to 125°C, featuring 16-pin CDIP (J) package, 4.5 V to 5.5 V supply voltage, and propagation delays as low as 4 ns (tPHL, A/B → Y) under military temperature extremes.
For engineers reviewing the 5962-8686901EA datasheet, 5962-8686901EA pinout, 5962-8686901EA application, or 5962-8686901EA equivalent, this device serves in high-reliability digital signal routing for avionics, radar processing, and hardened embedded control where full military temperature range, buffered I/O, and deterministic 2:1 multiplexing are required.
Technical Context
This device implements four independent 2:1 multiplexers sharing a common select (A/B) and strobe (G) input, with each output driven by an inverter and gate to ensure full logic swing and noise immunity. It uses advanced low-power Schottky (ALS) bipolar technology, delivering TTL-compatible input thresholds and output drive capability.
All outputs are actively driven (not open-collector), supporting fan-out of up to 20 LS-TTL loads. The strobe (G) enables/disables all four outputs simultaneously, providing synchronous gating without added external logic - critical for time-critical bus arbitration and data path isolation in real-time systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Quad 2-line-to-1-line data selector/multiplexer with true output (non-inverting) |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with legacy 5 V TTL systems and stable operation under rail variation |
| Operating Temperature | −55°C to 125°C - qualified per MIL-PRF-38535 for deployment in aerospace, defense, and downhole electronics |
| Propagation Delay | tPHL(A/B→Y) = 4 ns min (TA = −55°C to 125°C) - enables sub-10 ns cycle timing in high-speed control state machines |
| Output Drive | IOL = 4 mA / IOH = −0.4 mA - sufficient to directly drive multiple LS-TTL inputs without buffering |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - matches standard TTL logic levels for seamless integration into mixed-logic systems |
| Quiescent Current | ICC = 6 mA max (VCC = 5.5 V) - supports low-static-power design in battery-backed or thermally constrained modules |
Pinout & Package
5962-8686901EA is housed in a 16-pin Ceramic Dual-In-Line Package (CDIP, J package), hermetically sealed for moisture resistance and long-term reliability in harsh environments. Pin numbering follows standard DIP top-view convention with Pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Data input A for first multiplexer channel - routed to 1Y when A/B = L |
| 2 | 1B | Data input B for first multiplexer channel - routed to 1Y when A/B = H |
| 3 | 1Y | True-output of first multiplexer - active-high, fully buffered, drives LS-TTL loads |
| 4 | 2A | Data input A for second multiplexer channel |
| 5 | 2B | Data input B for second multiplexer channel |
| 6 | 2Y | True-output of second multiplexer |
| 7 | GND | Power ground reference - must be connected to system ground plane for noise immunity |
| 8 | 3A | Data input A for third multiplexer channel |
| 9 | 3B | Data input B for third multiplexer channel |
| 10 | 3Y | True-output of third multiplexer |
| 11 | 4A | Data input A for fourth multiplexer channel |
| 12 | 4B | Data input B for fourth multiplexer channel |
| 13 | 4Y | True-output of fourth multiplexer |
| 14 | VCC | +5 V power supply - bypass capacitor (0.1 µF) required within 1 cm of this pin |
| 15 | G | Strobe enable - all outputs forced low when G = H; outputs follow selected data when G = L |
| 16 | A/B | Common select line - determines source (A or B) for all four channels simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Full military temperature qualification | Tested and screened per MIL-PRF-38535 Class V - guaranteed operation from −55°C to 125°C without derating |
| Buffered inputs and outputs | Eliminates loading effects on upstream drivers and ensures clean signal integrity across backplane traces |
| Common strobe (G) control | Enables synchronized gating of all four outputs - essential for glitch-free data capture in sampled systems |
| TTL-compatible interface | Direct replacement for legacy 74LS157/74S157 in retrofitted military systems without level-shifting |
| Hermetic CDIP (J) packaging | Prevents moisture ingress and corrosion - certified for 10+ year field life in humid, salt-laden, or vacuum environments |
Applications
| Avionics Data Bus Switching | Radar Signal Path Selection |
|---|---|
|
Use Scenario: Selecting between primary and backup sensor data streams in flight control computers during fault detection. IC Role / Device Role / Timing Role: Quad 2:1 multiplexer routing analog-to-digital converter outputs or discrete status signals with sub-10 ns switching latency. Use Value: Enables fail-operational behavior via hardware-level redundancy switching - no software intervention required. |
Use Scenario: Routing IF signals between transmit/receive chains in phased-array radar front-ends during T/R module calibration cycles. IC Role / Device Role / Timing Role: High-speed, low-glitch data selector synchronizing with master timing generator via strobe (G) input. Use Value: Maintains signal integrity across RF subsystem boundaries while meeting MIL-STD-883 thermal cycling requirements. |
| Hardened Industrial PLC I/O | Military Vehicle Control Logic |
|
Use Scenario: Isolating diagnostic test patterns from operational I/O in ruggedized programmable logic controllers deployed in tank engine bays. IC Role / Device Role / Timing Role: True-output multiplexer enabling concurrent monitoring and control without contention on shared bus lines. Use Value: Supports hot-swap diagnostics while maintaining functional safety integrity per ISO 26262 ASIL-B decomposition. |
Use Scenario: Selecting between manual override and autonomous navigation commands in armored vehicle drive-by-wire ECUs. IC Role / Device Role / Timing Role: Strobe-gated multiplexer ensuring command validity before actuator engagement - prevents spurious activation. Use Value: Meets MIL-STD-1275B surge immunity and EMC requirements due to buffered I/O and ceramic package shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54ALS157AFK | Same ALS logic family and military temp range, but in 20-pin LCCC (FK) package - smaller footprint, higher thermal resistance | Better suited for space-constrained PCB layouts with thermal management via substrate conduction | Select when board area is limited and thermal interface to metal chassis is available |
| 5962-8862501EA | Inverting-output variant (′ALS158 function); identical pinout, package, and military qualification | Required where downstream logic expects inverted data or where propagation delay symmetry between A/B paths is critical | Choose only if system-level timing analysis confirms benefit of matched tPLH/tPHL across both inputs |
Compared with SNJ54ALS157AFK and 5962-8862501EA, the 5962-8686901EA provides non-inverting output logic in the industry-standard 16-pin CDIP format - simplifying legacy board redesigns and enabling direct drop-in replacement in existing J-lead footprints without layout revision.
Availability
5962-8686901EA is available at Aetrix Electronics and suitable for avionics data routing, radar signal selection, and hardened industrial PLC I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-8686901EA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability logic solutions with over 50 years of aerospace and defense component heritage.
The SN54ALS157A product line delivers radiation-tolerant, temperature-hardened multiplexing for mission-critical systems - designed specifically for use in guidance computers, electronic warfare suites, and satellite telemetry interfaces.
FAQ
What is the logic function implemented by the 5962-8686901EA?
The 5962-8686901EA implements a quad 2-line-to-1-line data selector/multiplexer with true (non-inverting) outputs. Each of its four channels selects between two data inputs (A or B) based on the A/B control line, and routes the selected signal to its corresponding output (1Y–4Y) when enabled by the strobe (G) input. This function is identical to the SN54ALS157A specification and confirmed in the SDAS081C datasheet function table.
Does the 5962-8686901EA support 3.3 V operation?
No, the 5962-8686901EA is specified only for 4.5 V to 5.5 V supply operation per its recommended operating conditions. It is not 3.3 V tolerant: applying 3.3 V to VCC results in undefined logic thresholds, degraded noise margins, and potential failure to meet propagation delay or drive strength specifications. For 3.3 V systems, consider modern alternatives such as the SN74LVC157A.
Is the 5962-8686901EA pin-compatible with commercial-grade SN74ALS157AN?
Yes - the 5962-8686901EA shares identical pinout, terminal assignments, and logic behavior with the SN74ALS157AN (16-pin PDIP), as confirmed by TI's package option addendum and the SDAS081C logic diagrams. Both use the same J-package pin numbering for CDIP and N-package for PDIP, enabling mechanical and electrical interchangeability in systems where military temperature range is not required.
What is the maximum clock/data rate supported by the 5962-8686901EA?
The 5962-8686901EA does not operate as a clocked device but as a combinational multiplexer. Its usable data rate is governed by propagation delay: the worst-case tPHL(A/B→Y) is 14 ns at TA = 125°C, supporting reliable operation with input transitions spaced ≥20 ns apart. This corresponds to a maximum effective switching frequency of approximately 50 MHz in synchronous applications with proper setup/hold timing.
Can the 5962-8686901EA be used without connecting the strobe (G) pin?
No - the strobe (G) pin must be actively driven. Leaving G unconnected risks floating-input behavior, causing unpredictable output states and increased ICC. Per the datasheet, G = L enables normal multiplexing; G = H forces all outputs low. For always-enabled operation, tie G to GND through a 1 kΩ resistor - never leave it open.
5962-8686901EA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-8686901EA FAQ
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6.How does Aetrix verify that 5962-8686901EA is sourced from the original manufacturer or authorized distributors?
All 5962-8686901EA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 5962-8686901EA meets industry standards.
7.What is the process for return or replacement of 5962-8686901EA?
All 5962-8686901EA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8686901EA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 5962-8686901EA part is unused and in its original packaging.
Return procedure for 5962-8686901EA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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